Campylorhamphus trochilirostris
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
The red-billed scythebill (Campylorhamphus trochilirostris) is a species of bird in the subfamily Dendrocolaptinae of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Panama, Paraguay, Peru, and Venezuela.
The red-billed scythebill and black-billed scythebill (C. falcularius) have at times been considered conspecific and also as sister species, but genetic data indicate neither is true. The red-billed and curve-billed scythebill (C. procurvoides) have also been suggested as sister species. Some of the subspecies are difficult to distinguish from each other. In addition, a small number of additional subspecies have been suggested to be split from existing... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Henri Pittier National Park | 🇻🇪 Venezuela | |
| 5 | Machalilla National Park | 🇪🇨 Ecuador | |
| 6 | Iberá National Park | 🇦🇷 Argentina | |
| 7 | Tambopata National Reserve | 🇵🇪 Peru | |
| 8 | Yasuní National Park | 🇪🇨 Ecuador |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Goiânia | 🇧🇷 Brazil | |
| 2 | Campo Grande | 🇧🇷 Brazil | |
| 3 | Caracas | 🇻🇪 Venezuela | |
| 4 | Asuncion | 🇵🇾 Paraguay |
Rare
Under 5% of wildlife watchers report a Red-billed Scythebill sighting in Machalilla National Park on a given day, based on 33 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 136th most-seen of the 248 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May, October and December
In those months about 10% of wildlife watchers report a Red-billed Scythebill in Machalilla National Park on a given day, against under 5% in January–April, June–September and November, the lowest months. Those are among Machalilla National Park's driest months, with about 25 mm of rain a month against 140 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Red-billed Scythebill sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 8
Of the 8 parks where we can rate Red-billed Scythebill sightings, Machalilla National Park ranks 5th at under 5%. The best odds are in El Impenetrable National Park (Argentina, about 50%), Parque Estadual Encontro das Águas (Brazil, about 10%) and Manu National Park (Peru, about 10%).
Same family: Furnariidae
The closest relatives of the Red-billed Scythebill that you can see in Machalilla National Park (family Furnariidae, Ovenbirds and Woodcreepers) are Pale-legged Hornero (about 40%), Streak-headed Woodcreeper (about 30%) and Necklaced Spinetail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-billed Scythebill is recorded against all the birds logged in Machalilla National Park (33 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
